Sample bare application with no Rails

bare/Gemfile

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+# frozen_string_literal: true
+
+source "https://rubygems.org"
+
+gem "sidekiq", path: ".."
+gem "rackup"

bare/boot.rb

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+require "sidekiq/api"

bare/simple.ru

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+# Easiest way to run Sidekiq::Web.
+# Run with "bundle exec rackup simple.ru"
+
+require "sidekiq/web"
+
+# A Web process always runs as client, no need to configure server
+Sidekiq.configure_client do |config|
+  config.redis = {url: "redis://localhost:6379/0", size: 1}
+end
+
+Sidekiq::Client.push("class" => "HardWorker", "args" => [])
+
+# In a multi-process deployment, all Web UI instances should share
+# this secret key so they can all decode the encrypted browser cookies
+# and provide a working session.
+# Rails does this in /config/initializers/secret_token.rb
+secret_key = SecureRandom.hex(32)
+use Rack::Session::Cookie, secret: secret_key, same_site: true, max_age: 86400
+run Sidekiq::Web